Thanks for sharing the details, He! It seems you just need to update your Windows 10, install all optional updates which may install missing raw formats.
Run Windows Update → Advanced options → Optional updates.
- Install everything under “Driver updates” and “Optional updates.”
Open Microsoft Store → Library → Get updates.
- Update all apps (including the Raw Image Extension and Photos).
Reboot and check if your RAW thumbnails and ratings appear.
See if this helps. If you need further assistance just let me know.
Best regards,
Kimberly